-2(a-b)²+3(a-b)³-½(b-a)²-3/2(a-b)³合并同类项(要求过程)
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-2(a-b)²+3(a-b)³-½(b-a)²-3/2(a-b)³合并同类项(要求过程)
-2(a-b)²+3(a-b)³-½(b-a)²-3/2(a-b)³
合并同类项(要求过程)
-2(a-b)²+3(a-b)³-½(b-a)²-3/2(a-b)³合并同类项(要求过程)
-2(a-b)²+3(a-b)³-½(b-a)²-3/2(a-b)³
=-2(a-b)²+3(a-b)³-1/2(a-b)²-3/2(a-b)³
=(-2-1/2)(a-b)²+(3-3/2)(a-b)³
=-5/2(a-b)²+3/2(a-b)³